South America

1971 Airmail – The 150th Anniversary of Peruvian Liberation Expedition

1971 The 150th Anniversary of Peruvian Liberation Expedition

1971 Issues of 1969 Surcharged

1971 State Maritime Corporation

1970 The 25th Anniversary of United Nations

1970 Copper Mines Nationalization

1970 The 10th International Cancer Congress, Houston, U.S.A.

1970 O’Higgins National Shrine, Maipu

1970 International Education Year

1970 Spanish Colonization of Chile